Wall fastening



WALL FASTENING Filed Sept. 16, 1937 Juin/s. 1- ATTORNEYS Patented July 25, 1939 UNITED STATES PATENT oFFicE 6 Claims.

My invention relates to improvements in fastenings for masonry surfaces.

The object of my invention is to provide fastenings for masonry surfaces by means of which members are supported in adjustable relation to previously constructed building surfaces such as masonry walls, and ceilings.

Another object of my invention is to provide fastenings wherein provision is made for rapid adjustment of the relative parts o-f the fastenings and a quick interlocking action is possible when the rapid adjustment has been completed.

Another object of my invention is to provide a fastening whereby the supporting members for a inished wall surface may be secured to a previously formed masonry structure and provision is made for universal movement of the parts of my fastening with reference to the frame.

In the drawing:

Figure 1 is a perspective of a brick or tile masonry wall showing my fastening in actual use in conjunction with a framework of channel members upon which a finished plaster wall may be supported.

Figure 2 is a section through a concrete wall and showing my fastening device in plan.

Figure 3 is a vertical section through a brick wall and showing my fastening device in side elevation.

Figure 4 is a plan view of a clip to be used with my fastening.

Figure 5 is a section through the receptacle of my fastening and showing my mounting member in position for rapid axial adjustment there- 1n.

Figure 6 is a View similar to that in Figure 5 but with my mounting member in locked relation to the receptacle.

Figure 7 is a vertical section through a monolithic concrete wall with the retaining forms still in position thereagainst and showing the receptacle and its supporting members in side elevation.

Like parts are identified by the same reference characters throughout the several views.

In the construction of a masonry wall IO/in conjunction with which my fastening device is used, I provide a receptacle II receivable either into the mortar joint I2 in brick work or receivable into the pourable concrete I3 in monolithic construction such as that shown in Figs. 2 4and 5. My receptacle II being formed to receive a mounting member I5 shaped somewhat like a flattened lag screw. Upon the screw, may be mounted the frame or other elements which are (Cl. Y2-118) to be supported by the mounting member from the masonry wall.

My receptacle I I may be made of any suitable material, but is preferably formed of stampings as shown most clearly in Figs. 5 and 6, where n it will be seen that the receptacle comprises generally a tubular housing which I form from two semi-cylinders I6 and Il flanged and rolled marginally so as to interlock with one another to complete a flanged tube, the curved surfaces of which are stamped or swaged to form short lengths of threads I8 and I9 along either face of the receptacle.

With the configuration of the receptacle as thus far described, it will be seen that the flattened lag screw i 5 comprising my mounting member may be slidably inserted into the receptacle to any degree of axial adjustment therein, and that the screw may then be rotated 90 degrees whereby to bring the threads of the lag screw into engagement with the threads of the receptacle, thus locking the lag screw in any particular position of axal adjustment desired.

While the relative dimensions of the receptacle and of the mounting member l5 are such as to cause heavy frictional engagement of the threads when a locking oscillation is completed, I have provided means whereby to fix the mounting member in its position of nal adjustment, such means comprising a relatively shallow indentation 20 at the leading margin of the threads I8 .and a relatively deep indentation 2| at the trailing margin of the threads, so that when the mounting member I5 is oscillated from the position shown in Fig. 5 to that shown in Fig. 6 an element of resistance is encountered as the threads ride over the protruding hump of the indentation 20 and encounter a virtual stop at 2|. It will be understood, of course, that the engagement of the mounting member I5 with the portions indented at 20 and 2| results Virtually in .a slight distortion of the tube of the receptacle.

The receptacle I I is provided with a flange 25 receivable against the exterior of the masonry wall IU o-r receivable against the interior face of form material such a boards 26 used to retain concrete I3. Therefore, in the construction of forms 26, the flange 25 may be nailed in position as shown at 21 in Fig. '7, and in this type of construction I provide a brace 28 of Wire or other suitable material looped through an aperture at 29 in the extreme inner end of the receptacle II and'tacked at 30 above the receptacle so as to prevent accidental displacement of the receptacle during the pouring operation.

The head 35 of my mounting member I5 is frusto-conically shaped whereby to receive any ordinary stock form of channel 36 forming part of the frame `upon which wire lath 31 or other surfacing material may be secured. By thus shaping the head of my mounting member I make it possible for a workman using my fastening devices to rotatably or oscillatably adjust the mounting member I5 even after the head 35 has been secured in a channel by means of a clip All which is apertured at 4l to receive the shank 2 of the mounting member. This clip is bendable about the channel 36 to hold it uponthe head 35. Y

I claim: Y Y

l. Ina fastening device for vmasonry surfaces, a substantially circular tubular receptor 4provided with convoluted surfaces formed 'therein whereby to engage said masonry, the interior of said tubular receptor having convolutions formed .in thread-like configuration, and a mounting member receivable in said receptor and Vprovided with thread surfaces engageable with ythe thread surfaces of the'receptor, the receptor being provided with ra detent whereby to position the mounting vmember in rotative threaded engagement with the receptor.

A fastening device for masonry surfaces including a receptor, ysaid receptor being formed of a piurality of curved members interlocked with one another whereby to formfa -tube closed at one end, one of said members being provided with thread surfaces, a mounting member rev ceivable in the tube and provided with spaced thread surfaces whereby to provide for sliding adjustment axial of said receptor and for locking engagement between the receptor and the mounting member upon rotation ofY the mounting member inthe receptor, means being provided adjacent the threads of the receptor whereby to position the threadedV portion of the mounting member in interlocked engagement with the threads of the receptor.

A device of the character described including a tubular receptor having one closed end and composed of material adapted to be pressed into eonvolutions, a-longitudinally disposedV portion ofthe wall ofthe receptor being vformed with interior cam-like projections interspersed with thread-like recesses, the shape of the exterior of said portion of the Ytube corresponding ton the thread-like interior recesses comprising convolutions receivable in mortar whereby'to fix said receptacle in masonry, and a mounting member Vfor said receptaclehaving `alongitudinally disposed lexterior rportion convoluted throughout substantially'its entire length for substantially free axial reciprocation in the receptor and for lnal rotative adjustment to engage the mounting member with the receptor to resist axial adjustment.

4. A device of the character described comprising an elongated tubular receptor closed at one end and provided internally with a mutilated thread restricting its cross-section upon one dlameter while leaving a larger cross-section upon another diameter, and a mounting member hav- Ving a shank provided with mutilated thread means complementary to said receptor and rendering its diameter on its larger cross-section lless than that of the restricted ysection of the receptor but receivable into the larger cross-section thereof, whereby said shank is freely adinstable longitudinally of the receptor when the larger sections of shank and receptor are in registry but is rotatable to mesh the thread means of 'the shank with the receptor thread to interlock the shank positively against longitudinal displacement, said shank being provided at itsV outer end 'witha supporting member adapted to be carried Vat an adjustable spacing from. said receptor. v

A device of the'character describedcomprising a receptor tubeclosed at onerend and flanged at the lother land provided 'at diametrical'ly vopposite sides with deformed portions externally constituting concrete anchorage 'means'.and internally constituting mutilated thread means restricting the cross-section .of lthe tubeiupon Vsaid vdiameter 'while leaving another diameter substantially unrestricted, and a screw khaving flat sides freely receivable between said deformed portions of the tube for .free axial adjustment therein, `othersides of said screw having thread means rotatably inter-engageable with the thread means of the tube to kfir; the screw in adljustment, said screw having Va .work-supporting head at itsouterV end. Y

A device of the character vdescribed comprising the combination with an adjustable screw having va mutilated thread and a work support at its end, .of a receptor in which said screw is freely adjustable in 4one rotative 'position `of the screw-'and with which the screw is interlockingly engageable upon rotation to another position, said receptor comprising two complementary stampings having lateral flanges in mutual marginal connection and provided with'complementar-y central channels to constitute Ya tube, said channels vhaving opposing wall portions deformed to constitute internal thread means for engagement Vby said screw and an Aexternal anchorage vfor masonry.

KARL P. GRASSBERGER. 

